AdBlue in the Diesel Tank in Down Field? Keep It Switched Off
With AdBlue in the diesel tank, your ignition remains off and so does the motor. Chemically, AdBlue is simply urea in water. As it is water-based, it won't burn and won't blend with diesel; trouble only comes once your pump begins drawing it. A drain and a thorough flush, done where your car is in Down Field, is generally all AdBlue in a diesel tank takes — if it is caught before the motor has run. Phone 0333 366 0103 before you do anything else.
Those opening minutes: AdBlue in the diesel tank in Down Field
Do:
- So nobody can switch your ignition on, pull the keys out.
- Near moving traffic? Then put the hazard lights on.
- The empty bottle or your receipt tells us the fluid and the amount, and so do not throw it away.
- Give us a postcode starting CB7 5, or whatever street lies nearest, and the van reaches you straight — so call from wherever you are.
Never do these:
- No starting your motor — not for a second, not to reposition the car.
- Your ignition stays off: on lots of diesels, switching it on is enough to run the fuel pump.
- No extra fuel added. The AdBlue won't blend, and so it is wasted.
- Any driving at all is to be avoided, even a short way up Windmill Close.
- Do not try to drain the vehicle yourself at the kerbside.
The attendants working at any Down Field filling station — the Esso included — will normally lend a hand rolling it aside if you ask. Stopped on your own driveway? Then it stays just where it is.
What AdBlue does in a diesel tank
Made for your exhaust, AdBlue has no place in the engine. Its own reservoir keeps it, and from there it's fed into your exhaust, and there it cleans the gas. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is designed to handle it.
Fuel mixes; AdBlue, once tipped in, will not. Its behaviour is not at all like diesel's. It's heavier than diesel, and so it sinks and gathers at the bottom of the tank, which is where the pickup sucks fuel from. Simplest of all: a vehicle that got AdBlue in North Field overnight and hasn't turned since. The AdBlue waits at the base of the tank, undrawn — though it would be the first thing through once your motor runs, ahead of any diesel at all.
It does two kinds of damage from there. Crystals and corrosion. As the water evaporates, it leaves urea that hardens in filters and tiny channels; meanwhile, because it attacks some metals, each part it touches keeps suffering for as long as it remains inside. Overnight, a car sitting around Down Field with AdBlue in its lines grows worse; where it's only in the tank, it doesn't. The water in it does harm of its own: your high-pressure pump and the injectors depend on diesel to lubricate them, and water offers them nothing.
Why AdBlue in a diesel is frequently more major than petrol
Top up a diesel with petrol in error over at the Pace, and this issue is thinned fuel. Harm only comes from running on it. Mixed into the diesel and left in your tank, it causes none.
With AdBlue in a diesel, the fluid itself is simply the wrong one. Not burning, it cannot simply be run through. Nor can it be watered down, since it separates again — and the following fill won't clear away crystals or corrosion. So the flush counts for more here, and turning the key "to see", in the centre of Down Field or out in Wicken, does more harm than nearly any other mistake.
The good news is the same as with petrol. Anywhere in Cambridgeshire your car has come to rest, an unrun engine means the AdBlue yet inside the reservoir: the simplest bit of a fuel system to clear.
How does AdBlue end up in a diesel tank around Down Field?
It is not deliberate. Plenty of cars have the AdBlue cap beside the diesel one, occasionally under one flap, and mixing them up is easy after dark. Most of the time it occurs with a bottle bought on the way home and poured in on the drive, not at the pump.
The ways it takes place are few and familiar. Halfway through the morning drop-off, the dashboard warns, and outside St Andrew's CofE Primary School the refill is hurried. A bottle is poured in at the end of the day on a drive just off Cornmills Road. Otherwise, after dark outside Cherry Tree, your vehicle gets topped up by a driver using that flap for the first time.
The least familiar vehicles see it most — rentals, new cars, fleet ones, and the other motor of a family with one of each fuels. Leave it off: that is the first step to the same mistake, anywhere around Down Field or the rest of Cambridgeshire you are.
Already started your engine with AdBlue in your diesel tank around Down Field?
Then the AdBlue has left the tank. Through the filter, through the lines, and — with any running time — on to the injection pump and each injector: that's where it travels.
You may see your engine running roughly, smoking, losing power, showing warning lights or cutting out, perhaps on the way back from Soham Meadow or halfway across Down Field. Stop as soon as it is safe, switch off, and don't restart the vehicle to check. Each start pulls more of that through.
If you were on the M11, under 15 miles from Down Field, come off at the next exit and stop somewhere sensible rather than pressing on.
Hopping across Down Field to the car park by Soham Village Sign is one thing; driving for Ely, under 10 miles away, is another, since each mile pushes the AdBlue deeper in. So distance counts. Roughly how far it had come is worth telling us.
There's more to clean out once the motor has been started, and our technicians do all of it where the vehicle has ended up. Spotted quickly, it very seldom leaves long-term damage.
What clearing AdBlue from a diesel involves in Down Field
The vehicle remains where it is, whether that is a street beside Ross Peers Sports Centre, a drive, a layby or a forecourt in Down Field, and the van travels to it. What got in, about how much, plus if the motor has turned over: we check first, since those decide the job.
On the spot, your tank is then drained, and both the contaminated diesel and the urea come out at once. A careful flush counts much more after AdBlue than after petrol, because what remains won't wash away on its own. The fuel filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and the car is tested. If your motor hasn't run, most jobs take about half an hour once we arrive. The pumps are explosion-proof, safe on a busy forecourt and quiet enough to use outside a house at night.
The last step is to prime your system on clean diesel. You drive off as soon as our technicians have started the engine, and it makes no difference whether the vehicle is on a drive in Down Field or in a space outside Soham. Our technicians check it runs properly on clean diesel before we go. We do it all wherever your car has stopped, and it never needs to go to a workshop. Afterwards, you are given paperwork for your insurer: a VAT invoice plus a report from the engineer.
About Down Field itself
Down Field is a small village in Cambridgeshire, situated inland at a low elevation of around 10 metres. Down Field lies near the city of Ely and other nearby places such as East Fen Common and Soham. Down Field has a population of approximately 888 people and predominantly consists of semi-detached housing. Down Field is located about 59.9 miles from London, making it a relatively rural community in the Eastern region.
AdBlue drains in Down Field and across Cambridgeshire
Over the CB postcode area, the vans answering AdBlue jobs in Down Field reach most of Cambridgeshire as well, East Fen Common, Soham and Fordham included. Close to a border, or somewhere awkward to pin down? Asking is better than assuming, and so phone.
No moving is needed. In Down Field, a rural village, a van that comes to you fits: your car is emptied on the spot, be it in a drive, a side street, a car park or a forecourt.
What does AdBlue in a diesel tank cost to sort out around Down Field?
Because the callouts differ, a single figure would not be fair. What shifts the price is, first, whether the engine has run and for how long; then how much AdBlue was put in; and after that where your car is and whether a van can reach it safely, which is easier on an open driveway than in a tight gap behind War Memorial.
That's why every call from Down Field starts with the same three queries, asked before giving a figure, not after: what went in, how much, and if it's run. Their answers narrow the range down to one figure.
The quote is given during the call, before anyone sets off; payment happens on the day, by card or over the phone, with nothing upfront. While the van is travelling, dig out your policy: many cover misfuelling.
Down Field: still beside your car?
Not touching your car is, right now, the best thing you can do. Keys out, motor off, ignition off. Petrol in Diesel handles the remainder, across Down Field or anywhere within Cambridgeshire, after you ring 0333 366 0103 saying it's AdBlue, about what quantity, and whether it ran.